Science is defined as the systematic and organised gaining of knowledge
that is derived from observations, which are verified and tested thoroughly.
Accumulation of facts, discovering and  inventing new theories depending
on these facts can also be termed as science.

Formal Science represents those disciplines that deal with symbols and theoretical ideas
and their applications in the real world. Aspects of formal science are used in all other scientific disciplines.
Formal science includes computer science, mathematics, and statistics.

Those working in the Natural Sciences use the scientific method to understand nature and the physical world.
Natural science includes biology, chemistry, geology, and physics.

Social Science is the study of societies and the interactions within them.
Social science includes anthropology, psychology, and sociology.